Results 171 to 180 of about 35,378 (220)
Adaptive radiation in Coffea subgenus Coffea L. (Rubiaceae) in Africa and Madagascar
Plant Systematics and Evolution, 2010 Phylogeographic analysis of the Coffea subgenus Coffea was performed using data on plastid DNA sequences and interpreted in relation to biogeographic data on African rain forest flora.
François Anthony +2 more
exaly +2 more sources
, 2006 Coffee (Coffea sp.) is a perennial plant widely cultivated in many tropical countries. It is a cash crop for millions of small farmers in these areas. As compared with other tree species, coffee has long breeding cycles that make conventional breeding programs time consuming.
Leroy, Thierry +3 more
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An investigation of carotenoid biosynthesis in Coffea canephora and Coffea arabica
Journal of Plant Physiology, 2008Carotenoids are essential components of the photosynthetic apparatus in a wide range of organisms. They participate in the adaptation of plastids to changing environmental light conditions and prevent photo-oxidative damage of the photosynthetic apparatus by detoxifying reactive oxygen species. We identified eight cDNAs from the carotenoid biosynthetic
Andrew J, Simkin +6 more
openaire +2 more sources
1951
Publisher Summary This chapter investigates the genetic characters of coffee, which is a woody perennial plant. The genus Coffea(C) is polymorphic. All species so far studied have been found to have 2n=22 chromosomes with the exception of C. arabica that has 2n=44 chromosomes. The haploid form of C.
C A, KRUG, A, CARVALHO
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Publisher Summary This chapter investigates the genetic characters of coffee, which is a woody perennial plant. The genus Coffea(C) is polymorphic. All species so far studied have been found to have 2n=22 chromosomes with the exception of C. arabica that has 2n=44 chromosomes. The haploid form of C.
C A, KRUG, A, CARVALHO
openaire +2 more sources
Standardization of homeopathic Coffea arabica (Coffea cruda) and Coffea tosta matrix tinctures
Pharmaceutical Chemistry Journal, 2008Methods of standardization and quality control of homeopathic matrix tinctures of Coffea arabica and Coffea tosta obtained using green and roasted coffee beans are described. They include the organoleptic characteristics, qualitative reactions, TLC, quantitative estimation of caffeine and total phenolcarboxylic acids (calculated as caffeic acid ...
openaire +1 more source
2011
Coffee production relies on two species, Coffea arabica and C. canephora, grown in Latin America, Africa and Asia, but up to 126 species have been described in the Coffeae tribe. Traditional cultivars of the main cultivated species - C. arabica - derive from two narrow genetic bases and consequently present a homogeneous agronomic behavior ...
Anthony, François +3 more
openaire +2 more sources
Coffee production relies on two species, Coffea arabica and C. canephora, grown in Latin America, Africa and Asia, but up to 126 species have been described in the Coffeae tribe. Traditional cultivars of the main cultivated species - C. arabica - derive from two narrow genetic bases and consequently present a homogeneous agronomic behavior ...
Anthony, François +3 more
openaire +2 more sources
Coffea SPP. Genetic Transformation
2004Selon les auteurs, le besoin d'une méthode satisfaisante de transformation génétique du caféier est très important, à la fois pour évaluer la fonctionnalité des gènes, et pour introduire de nouveaux gènes intéressants dans des génotypes d'élite de caféier. En partant d'un protocole existant, ils ont développé leur propre procédure à haut rendement, qui
Leroy, Thierry, Dufour, Magali
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Microsatellites in Coffea Arabica L.
2000DNA polymorphism has became a widespread tool in biotechnology; in fact, they are frequently used for a number of technical approaches as, for example, in agronomic traits identification, variety characterisation, and marker-assisted breeding programmes.
ROVELLI P. +5 more
openaire +2 more sources